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Credit Facility - Additional Information (Detail) - Revolving Credit Facility [Member] - USD ($)
$ in Thousands
Dec. 26, 2019
Feb. 07, 2008
Debt Instrument [Line Items]    
Revolving loan commitment and letter of credit sub facility $ 117,500 $ 117,500
Available credit under the Credit Facility 100,830  
Outstanding letters of credit 3,175  
Revolving credit facility borrowings $ 13,495